Flow regulator



FIG. 1 is a top right front perspective view of a flow regulator according to my design;

FIG. 2 is a bottom left rear perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof, the left side elevational view being a mirror image thereto;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a top view thereof. 

The ornamental design for a flow regulator, as shown and described. 